Stop guide adjustment for printing presses



Feb. 1937.

- W. GEGENHEIMER STOP GUIDE ADJUSTMENT FOR PRINTING PRESSES Filed Aug.26, 1956 2 Sheets-Sheet 1 Feb. 9, 1937. w. GEGENHEIMER 2,069,918

STOP GUIDE ADJUSTMENT FOR PRINTING PRESSES Filed Aug. 26, 1956 2Sheets-Sheet 2 7 mum :21? 22 20 Patented Feb. 9, 1937 UNHTE STATESPATENT OFFIE STOP GUIDE ADJUSTMENT FOR PRINTING PRESSES ApplicationAugust 26, 1936, Serial No. 98,093

11 Claims.

This invention relates to stop guides for use particularly in connectionwith lithograph presses.

The primary object of the invention is to provide a stop guide of sucharrangement that the guide arms or fingers thereof may be easily andaccurately adjusted Without the possibility of interfering with thetiming of the stop mechanism.

A further object resides in so constructing the stop mechanism and themounting therefor as to enable the ends of the guide shaft to beindividually or selectively adjusted as the case may require withoutinterfering with the operation of the machine nor in any way affectingthe timing mechanism therefor.

With these objects in view, together with others which will appear asthe description proceeds the invention consists in the novelconstruction, combination and arrangement of parts, all as will bedescribed more fully hereinafter, illustrated in the drawings andparticularly pointed out in the claims.

In the drawings:

Figure 1 is a fragmentary front elevation of a stop guide mechanismembodying the invention,

Figure 2 is a top plan view of a stop mechanism,

Figure 3 is an enlarged sectional view taken upon line 33 of Figure 1,

Figure 4 is a similar view taken on line 44 of Figure 1,

Figure 5 is a detailed perspective view of one end of the stop guideshaft,

Figure 6 is a sectional view taken upon line B% of Figure 1, and

Figure 7 is a sectional View taken upon line 'll of Figure 6.

The device embodying the invention is used in connection with therotating cylinder or carrier of a lithograph press, and includes stopmechanism to limit the movement of and to hold the paper stationarymomentarily above the cylinder until carried away by the latter. Theinvention resides generally in means whereby the supporting shaft forthe guide arms may be adjusted in the line of movement of the travelingpaper without in any way aifecting or disturbing, the timing mechanismfor the guides.

In the drawings 8 indicates bearings at the sides of the machine andformed integral with the frame thereof, while 9 indicates the rotatingcylinder directly adjacent to the side bearings.

Associated with the bearings and above the cylinder is a shaft If!having a longitudinal key way ll therein for the reception of keys 12associated with guide arms or fingers l3; set screws M being employed tolock the keys and guide arms in proper position upon the shaft.

Each end of the shaft has connected thereto a bracket or yoke l5, pinnedto the shaft ends by the wedges or keys Hi. The arms I! of the yoke orbracket embrace a flat plate or slide I8 forming a part of a trunnion l9rockably mounted in the bearings 8. By this arrangement it is apparentthat the trunnions and shaft may rotate in unison yet the shaft may bebodily adjusted laterally of the trunnions.

The plate or slide i8 is provided with a laterally disposed slot 28through which passes a bolt or pin 2i connecting the arms of the yokewith the said slide. The slot 28 will be of sufficient length to permitof a relatively wide range of adjustment between the shaft and thetrunnion.

Each of the plates or slides is provided with a lateral ofiset indicatedat 22, carrying an upstanding yoke 23 in which is seated the shank 24 ofa screw threaded in the adjacent portion of one of the yoke arms ii. Thespaced shoulders 25 on the stem of the screw engage opposite ends ofyoke 23 and thus limit movement of the screw relative to the plate.Rotation of the hand wheel 26 of the screw will therefore cause the yoketo move relative to the plate which is carried by the trunnion.

One of the plates has its oiiset portion 22 provided with a pin 21spaced parallel with the trunnion, and the upper end of a link 28 isrotatably engaged by the said pin. The lower end of this link carries aroller 29 which engages a cam or eccentric 39 carried by the cylinder,while a second link 31 also connects with the lower end of link 28 tosteady the motion of this said last mentioned link. The link 3! may beloosely connected at its opposite end with some fixed part of themachine, not shown.

In operation, the stop mechanism will be so timed that the cam oreccentric 39 will operate to raise the link 28 at the proper moment.This movement operates through pin 2i to rock the shaft upon thetrunnions l9 and thus lift or swing the arms 13 out of the path of asheet move together- Within the range permitted by the length of theslots 20, it is obvious that adjustments may be freely made without inany way disturbing the timing mechanism, as the supporting said shaft,means for moving said shaft relative to said trunnions and parallel withthe direction of movement of said sheet, a cam on said cylinder, a linkconnected eccentrically with one of said trunnions, and a roller on saidlink riding on said cam.

2. A stop guide mechanism for presses, a cylinder to receive sheets, ashaft arranged above said cylinder and parallel with the axis thereof,trunnions rockingly supporting said shaft, means for adjusting saidshaft on said trunnions, guide arms carried by said shaft, and meansforrocking said shaft.

3. A stop guide mechanism for presses, a cylinder, a shaft arrangedadjacent to and parallel with the axis of said cylinder, trunnionsrockably supporting said shaft, means for adjusting said shaft in saidtrunnions, guides projecting from said shaft, and means for rocking saidshaft.

4. A stop guide mechanism for presses, a cylinder, a shaft arrangedadjacent to and parallel with the axis of said cylinder, a trunnion foreach end of said shaft, a bracket and slide connection between the endsof the shaft and the respective trunnions, means for adjusting thebrackets and slides relative to each other, guides projecting from saidshaft, and means for rocking said shaft.

5. A stop guide mechanism for presses, a cylinder, bearings arrangedadjacent to said cylinder, trunnions in said bearings disposed parallelwith the axis of said cylinder, a slide on each trunnion, a shaft, ayoke at each end of said shaft engaging the slide of the adjacenttrunnion, means on the yokes and slides for moving the yokes laterallyof the trunnions, guide arms 7 on said shaft, and means on the cylinderfor rocking said shaft.

6. A stop guide mechanism for presses, a cylinder, trunnions rockablymounted adjacent to said cylinder and parallel with the axis thereof, ashaft, a yoke at each end of said shaft embracing the adjacent trunnion,a screw member associated with each yoke and trunnion for moving theyoke laterally of the trunnion, guide arms projecting from said shaft,and means for rocking said trunnions.

'7. A stop guide mechanism for presses, 2. cylinder, a cam on saidcylinder, a shaft rockably mounted above and parallel with the axis ofsaid cylinder, guide arms depending from said shaft, a linkeccentrically connected at one end with said shaft, a roller on theopposite end of said shaft riding on said cam, and means for adjustingsaid shaft laterally.

8. A mounting for stop guides, comprising a shaft, a trunnion for eachend of said shaft, a slide on each trunnion, a yoke on each shaft endembracing the adjacent slide, a screw loosely mounted on said slide andthreaded in said yoke, a screw locking said yoke and slide together, apin on said slide spaced parallel to said trunnion, a link connected tosaid pin, and guide arms projecting from said shaft.

9. A stop guide for presses, a guide member disposed transverse to thetravel of a sheet in said press, an oscillatory member supporting saidguide member, and means for adjusting said guide member relative to saidoscillatory member.

10. A stop guide for presses, a guide member disposed transverse to thetravel of a sheet in said press, an oscillatory member supporting saidguide member, and means associated with the guide and oscillatory memberfor adjusting the guide member in the line of travel of the sheet.

11. A stop guide for presses, oscillatory members at opposite sides ofsaid press, a guide member disposed transverse to the path of travel ofa sheet in said press and supported by said oscillatory members, andmeans for adjusting said guide member on said oscillatory members.

WILLIAM GEGENHEIMER.

